Recent content by Vern

I predect that nothing can exceed the speed of light because the final irreducible constituent of all physical reality is the electromagnetic field. But I think someone said that about 150 years ago.

The sky isn't all bright because, for whatever reason, the more distant a light source the more red shifted is its light. When we check low enought frequencies, we even find the light shifted into the radio frequencies.

In phase situations tend to reinforce each other, out of phase situations tend to inhibit, or cancel the effects of each other. When you tune your radio to a certain station, you are changing the characteristics of your receiving device so that it is in phase with the transmitter of the station...

Electromagnetics James Clerk Maxwell first wrote down the equations that describe electromagnetic waves back in the 1800's. They've survived to present without any change that I know about. They're important in that they are the basis for all communication and play a role in everything else...

That is a quote from Einstein; I found it in one of Einstein's articles in "The World of Physics", Weaver. I can look it up if there is any question about its accuracy. Einstein was explaining how the theories of Maxwell, (Not Maxwell's EM theory) Lorentz, etc had basic flaws. He couldn't...

There's a 100 year old proposition that explains why E=mcc; that proposition has never been put to rest. It is: The final irreducible constituent of all physical reality is the electromagnetic field. Understand that and you will understand all of the "WHY" questions we can't answer with...

The roads follow natural inclines that are not so steep. You will do this same thing naturally when walking up a steep incline, you go up at an angle because the walking is easier in the short term.

I think you will find that a charged object undergoing constant acceleration will emit electromagnetic radiation. I don't remember Feynman saying otherwise :o) Which wouldn't matter anyway.

I always thought the alcohol absorbed the water and acted as a solvent so that water and alcohol were both absorbed by the subject petrol product.

I've seen these experiments. A powerful pulse of some duration is sent through a filter that blocks most of the pulse. What comes out is a much shorther pulse, the beginning of which is later than the beginning of the input pulse, but the center of the much shorther pulse is before the center of...

I suspect that they produce this wind speed effect in wind tunnels all the time. Down stream of the object in the wind I suspect that there are patterns of pressure waves that can be felt as sonic booms. Upstream should be clean.

I think it is more that photons interact than collide. Think of a beebe moving under a sheet. The whole area of the ripple determines the future position of this photon and other photons in the area. The peak in the ripple has the greatist probability of photon interaction with a target. The...

Electromagnetic amplitude changes. The photon carries itself :smile:

I'll try. A photon is electromagnetic change that moves through space at a constant speed and constant amplitude.

I've explored that concept and such descriptions seem possible to me.